Home / 285,771-620,790

Finding the Third Proportional to 285,771 and 620,790

Calculator

Solution

The third proportional to 285,771 and 620,790 is: 1,348,563.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,771 : 620,790 = 620,790 : x
  2. Step 2: Convert to fraction form
    285,771/620,790 = 620,790/x
  3. Step 3: Cross multiply
    285,771x = 620,790 × 620,790
  4. Step 4: Simplify right side
    285,771x = 385,380,224,100
  5. Step 5: Solve for x
    x = 385,380,224,100/285,771
  6. Step 6: Final answer
    x = 1,348,563.09

Related Problems

Find third proportional to 142,885.50 and 310,395
Half scale
Find third proportional to 571,542 and 1,241,580
Double scale
Find third proportional to 285,773 and 620,794
Similar ratio
Find third proportional to 428,656.50 and 931,185
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.